Flatterland by Ian Stewart. Published in 2001 by Perseus Publishing. This is a hardback with 301 pages, a dust cover, and an ISBN#0-7382-0442-0. The dust cover is in good shape. There is some water damage to the front and back bottom corner of the dust cover. The pages all appear to be crisp and clean. When the book is closed, you'll see on the front edges a brown stain.